Sometimes I understand why people think there should be required training.
Sounds like you need to make some adjustments on where and with who you are hanging out with.
handgunlaw.us and click on Indiana, and read the PDF. It gives a basic run down of state laws, and has also has relevant state statutes listed, and you can Google them. I'm pretty sure the sidewalk of the courthouse should be OK. Why on earth would you be hanging out on the lawn of the court house?